Elimination and clear signal for adding-machines.



J. P. HUNTER & H. KfiNTZLBR. ELIMINATIQN AND CLEAR SIGNAL FOR ADDING MACHINES.

' APPLIOATION FILED APR. 8. 1909. 1,054,554.

Patented Feb. 25', 1913 3 SHEETS-SHEET 1.

4% INVENTORS M0144 I,

WITNESSES Bri /2. 0

A TTORNE APPLICATION FILED APR. 8, 1909' Patented Fb.25,191-3.

3 SHEETS-SHEET 2.

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I APPLICATION FILED APR. 8 1909. 1,054,554.

Patented Feb. 25, 1913.

s SHEETS-SHEET s.

m wMN mtmmmmu 2 ATTORNEY 7 To all whom it may concern;

UNITED STATES PATENT OFFICE.

JOHN P. HUNTER, AND HENRY KT j'N'IZLEIRJ, OF WILKES-BARBIE PENNSYLVANIA, ASSIGNO RS TO ADDER MACHINE COMPANY, A CORPORATION OF PENN SYLVA NIA.

ELIMINATION AND CLEAR SIGNAL FOR ADDING-MACHINES.

Specification of Letters Patent.

1 Application tiled April 8, 1909. Serial No. 488,684.

Be it known that we, dorm 1. llnxrna and HENliY KiiN'rzLER, citizens of the United States, and .residents of Wilkes- Barre, Lu'zerne county,Pennsylvania, havev invented certain new and useful .I1nprove-- ments in Elimination and Clear Signals for Adding-Machines, of which the following -is a specification. .1

- Our invention relates to adding machines and has for its object the provision of means whereby there is produced simultaneously or successively upon the record strip of the machine an indication that the machine has been cleared, that is, that its numeral wheels have been returned to zero and that an item 'registered thereafter has not been acemnulatd upon the numeral wheels.

There are known in this art. maclnnes provided with a mechanlsm whereby there 1s autounitieally indicated on the record strip a clear signal printed alongside of the first item enumerated after the machine has been'cleared or the numeral wheels returned to zero. There are also known in this art machines provided with means for printing an indication opposite an item which hasbeen listed on the record strip but not accumulated on the numeral wheels. This kind of designation may, for'convenience, be called an eliminat-ion signal; In all such mechanisms known to us it has been impossible to use these two signals 'simultaneouslv, because they are printed at the right of the item to be designated and in the same place. and would interfere with each other if attempts were made to print them simultaneously, and for the further reason that the clear signalis necessarily operated from the totalizing key and cannot therefore be printed beside an Item ofregistratlon while the elimination signal isnecessarily operated from the nonadding keyin connection with an item of registration and cannot therefore be printed when the totalizing key is depressed. yet there are times when in book-keeping practice it is desirable to use both the clear signal and elimination signal simultanc ously.

In general book-keeping practice it is well known thatthe debit items on a ledger usually exceed in number thecredit items.

When an adding machine is used to assistin the book-keeping the machine should therefore preferably be customarily used in And registering debit itelnsand the credit items which are fewer in number should be re- Patented Feb. 25,1913.

corded during the abnormal operations of the mechanism. It is. however, very important that a book-keeper should know in printlng'credit items that the machine is clear anddoes not contain-any items there-' In the drawings. Figure 1 is a perspective view of a portion of an adding machine embodying our invention: Fig. 2 is a detail of the elimination signal type; Fig. 3 is a detail of the clear signal type; Fig. 4 is a detail of the combined elimination signal and clear signal type; Fig. 5'is a perspective view similar to that shown in Fig. 1 but showing the clear signal removed, the. nonadding key depressed and the hammer released -to strike the elimination signal type, and Figs. (3, 7, 8, J and are illustrations of records showing the practical use of the invention. l

In the drawings. 1 represents a portion of the frame of an adding machine.

2 is a platen roller suitably supported and adapted to be intermittently rotated in barmouy with the operations of the other mechanism.

3 is a record strip supported upon the platen and moving with it.

4 is an. inking ribbon held adjacent to the record strip.

5. 5, are type carriers arranged in denominational series and each adapted to be verti- 'all v moved to bring to the line of print the severaltypes (i. 6, which are vertically arranged according to the ordinals in the type carriers and are each adapted to be propelled forward to the line of print by hammers 7'. The type carriers are each moved upward by means of a series of links and levers indicated at S. which are operated from the main shaft of the machine by intermediate mechanism (not shown). The hammers are loosely mounted in denominational series. corresponding to the series of type,

Cir

upon a common shaft 9. Each of them is provided with a slotted link connected to or shaft 15. In the usual operation of the.

machine the shaft 13 is oscillated from the main shalt-tliroufzlr intermediate unachauism which stretches the springs 11 and charge them with energy. The hammers T are normally detained against this action by the hammer hooks 14 by which they are engaged. But when the type carriers are elevated through the mechanism indicated at 8 to bringthe proper types to the line of print release'bars l6,"also released by the same mechanism, are lifted by springs to rotate the hammerhooks on their shaft and thus to release the hammers 7 and enable them to be propelled against the types.

The clear signal comprises the following parts: A bracket orsupplementary carrier is mounted at the side of the units type carrier. A sleeve 21 is placed in an aperture in the bracket 20 and inside of the sleeve arranged a reciprocating type barQ-Z around which inside of the sleeve is arranged a retractijng spring (not shown). A hammer hinged to form two parts, 23 and 24, is cocked by a mechanism indicated at 25 and which is operated from the totalizing key of the machine. When the totalizing key is depressed, thenthrough the mechanism indicated the hammer'23is cocked and when the first item thereafter is. registered this hammer is propelled forward through the spring 240 with the units hammer and the clear signal is printed alongside of the item. The elimination signal comprises the 1501- lowing parts: is a non-addin key provided with a depending stem 31. From this stem is oscillated an elbow lever 32 terminating in a hook 33 which is adapted to pass beneath the shaft- 34 on which the numeral wheels 35am carried. These wheels are provided with pinions indicated-at 36 which are adapted to engage with rack .bars which are recipro'c-ated longitudinally of the ma-' chine to an extent governed by the-numeral keys. In the normal operation of'the machine, at the end of the forward stroke of the main shaft, the numeral wheel shaft 34 is lowered so that the numeral whee-ls en: gage with their several racks and on the re- 1 turn stroke of the main shaft eachwheel is rotated by its rack. \Vhen the non-adding key is depressed the hook 33 is oscillated to a position beneath the. shaft 34 andv the latter is thereby prevented from being lowered, and therefore no engagement takes place betweeu the numeral wheel pinions and their re- ,sper'tive racks and the items are not. a fcumu lated on the wheels, although they are printed which a retracting spring as usual, because the printing mechanic not intert'ered-witl'n The stem 31 of the nonadding key is provided with an arm 3? which is secured to a transverse shaft 38 to which 'in turn is secured a lever 35) connected by means of a link 3&0 t0 the harm mer hook let. It is obviousthat when the nonadding keyis depressed the hammer hook 14.- will be lifted just as when the release bar 16 is elevated, and the hammer 7 will be pro polled forward. A sleeve i1 is placed in an aperture in the bracket 20 and inside of it is arranged a reciprocating type bar tz around (not shown).

This type bar has an offset head 43 which is in the plane of the type barQB and is suitably apertured to permit the type bar 22 to reciprocate through it. 'On thecnd otthe head 43 is placed a char-.u-tcr as a triangle A which will permit the clear signal. character to be printedinside of it, thus 49 A striker 50 is positioned 1n the units hammer and when propelled forward path of the it strikes the'end of the type bar at). and propels its head forward against the inking ribbon and record strip. \Vhenerer the non- .adding key ZlOis depressed the hook ll released and the elimination signal is printed. If, however, the totalizing key has been depressed and the clear signal hammer 23 has been cocked through the mechanism indicated at 25, then the clear signal will be printed as the next item is ,registcred. It the non-adding key is not depressed thcn the clear signal type bar will pass through the head 43 of the elimination type bar 42 and the clear signal 6) will be printed, but if the non-adding key is depressed then the elimination signal will be printed also thus indicatingnot only that the machine has con cleared but that the item registered has not been accumulated.

As shown in Fig. 1, the numeral Wheel 35 is attached to a pinion 36, which meshes witha rack located beneath it and adapted by reciprocatory motion to rotate the pinion. The shaft 34, which carries the pinion and numeral wheel is adapted to he moved in a vertical plane, the movementbeing sufiicient to throw the pinion into and out of engage;

ment with the rack below. As iswell known of an item without lts accumulation the ke 30 show-n in the same figureis depresse This rocks bell-crank 3E2, thelower end of which 33' hooks under shaft 34:, raising the pinion 36 from engagement with the actuating rack below, thereby movement of the latter from actuating the register to record the item.

In Fig. 6, there is shown a series ofitems as printed on the record strip, the first item preventing the displaying both the clear signal and the elimination signal indicating that the machine clear when the item was registered and, that such item was not accumulated. The third, seventh and eighth items, each displaying the slain 'nation signal, indicate that they were no, accumulated, while the total gives the I of he accumulated items only. In Fig. '7, the met item displays the clear signalonly dicating that the machine was ciearwhe'n the item was registered, and that the item was accumulated; the third item displays the elimination signal and indicates that such item was not accumulated. In Fig. 8 the first item displays the clear signal and elimination signal and conscquentl in the total in Fig. 9 there is shown an illustration of a trial halince with the totals on' the debit side carried over in each column to a final total and the machine then cleared and the credit items each listed with the elimination signal, both series h g the clear signal at the beginning. In Fig. 10 there is shown a re ular series with the clear signal opposite the first item, he total added in and carried forward, Several items not accumulatedand each displaying the elimination signal and the total showing'the accumulation with these items clumnated.

- \Vhatwe claim as new isl 1. In an addingma'chine, a special type barbearing a clear signal, in combination with a second special type bar bearing an chimnat on signal, and means comprislng a hammer for each type bar whereby they are pro pelled to the line of print simultaneously or successively.

2. In an adding machine, a special type bar bearing a clear signal, in combination with asecond special type bar bearing an elimination signal, and means whereby they are propelled to the line of print simultaneously or successively. I

8. In an adding machine, a special type bar bearing a clear signal, in combination with a second special type bar bearing an elimination signal, and means'comprising two hammers arranged side by side, one for each type bar, whereby they are propelled to the line of print separately or together.

4, A type bar bearing a distinguishing character, in combination with a second bar bearing another character and ll'letlllS whereby both characters are printed simultaneously within a single subdivision of the printing" space.

In an adding machine, a type bar hav ing' a head bearing an elimination signal oti'set into the plane of movement of a second type bar bearing a clear signal, the elimination signal head being aperturcd to permit of the passage of the clear signal type bars.

only the second item is shown 6. A movable typebar having an ofiset head whereby a character} borne thereon may be printed outside of the vertical plane of the typebar, in combination with a. block adapted to strike the type bar to effect a printing operation.

7. A combined type comprising two bars, each carrying type adapted to reciprocate side by side, one provided with an offset head through which the other isadapted to pass.

8. A combined type comprising two bars, each carrying type adapted to reciprocate side by side, one provided with an offset head through which the other is adapted to pass, whereby the type carried by bothare imprinted in the same plane.

S). A combined typecomprising two bars, each carrying type adapted to reciprocate side by side, one provided with an offset through which the other is adapted to pass, whereby the type carried by both are imprinted in the same plane which is outside of the plane of reciprocation of the type bar with the 'oflset head.

10. .In an adding machine, a special type bar hearing a clear signal, in' combination with a second special type bar bearing an elimination signal, and means comprising a hammer for each type bar whereby they are propelled to the line of print simultaneously or successively in the same vertical plane.

11. In an adding machine, a specialtype bar bearing a clear signal, in combination with a second special type bar bearing an elimination signal, and means comprising two hammers arranged side by side, one for each tyre bar, whereby they are propelled to the line of print separately or together but in the same vertical plane.

12. In an adding machine provided with accumulating, printing and clearing mech anism and means whereby the function of the accumulating mccl'ianism may be interrupted, a clear signal. an operative connec- 'tion between it and the clearing mechanism,

an elimination signal. an operative connection between it and the interrupting means of the accumulating mechanism, and means whereby both of these signals may be simultaneouslyqn'inted in the same vertical plane.

13. In an adding machine provided with accunmlaling, printing and clearing mechanism and means whcreby the function of the accmnulating mechanism may be interrupted, a clear signahan operative connection mechanisms thereof, of means for displaying automatically at thefbegirming of alist or non-accumulated items, as an incident to the printing of the. first item on the list, suitable signals to indicate that the adding mechanism waslclear when the list was begun and that the'item was not accumulated.

16. In an adding machine, a special type bar or carrier bearing a distinguishing char acter, means cooperating therewith to cause said character to be automatically printed with the first item registered after clearing the adding mechanism, and a second special type bar or carrier bearing a different distinguishing character and means cooperat- 30 ing therewith to cause the latter character to be printed with any non-accumulated item registered whether the adding mechanism had been cleared or not.

17. Inan adding machine, a special type bar bearing a clear signal, in combination with a second special type bar bearing an elimination signal, and means comprising a hammer whereby it is propelled to the line of print separately or together but in the same vertical plane.

18. The combination of a plurality of printing surfaces, one of which is movable relatively to. the other in a printing direction and both of which are adapted to print simultaneously within the same unit space, substantiallyas shown and described.

'VVitness our hands this 6th day of April 1909, at VVilkes-Barre, Pa.

JNO. P. HUNTE l.

HENRY KUNIZLER.

Witnesses Many A. HEAiacY, CHARLES S. l\lCNAB. 

